Music-leaf turner.



M. JELLUM.

MUSIC LEAF TURNER.

APPLICATION FILED MAR. 20, 1917.

. Patented Feb. 5,1918.

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2 SHEETS-SHEET 2.

Patented Feb. 5,1918.

M IELLUM.

MUSIC LEAF TURNER.

APPLICATION man MAR. 20, 1911. 1,255,612.

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84wout/UM Mk 4 MARTIN JELLUM, 0F CLAY CENTER, KANSAS.

MUSIC-LEAF TURNER.

Specification of Letters Patent.

Patented Feb. 5, 1918.

Application filed March 20, 1917. Serial No. 156,007.

To all whom it may concern:

Be it known that I, MARTiN JELLUM, a citizen of the United States,residing in the city of Clay Center, in the county of Clay and State ofKansas, have invented certain new and useful Improvements in Music- LeafTurners, of which the following is a specification, reference being hadto the accompanying drawings, which form a part hereof.

My invention relates to improvements in music leaf turners and theobjects are to construct a device which may be readily attached to anyof the standard makes of pianos and easily operated by the pianist, alsoto provide a turner which, when detached,- may be folded into a formconvenient for carrying from place to place.

I attain these objects by means of the mechanism hereinafter describedand illustrated by the accompanying drawings, in which,--

Figure 1 is a front view of my invention in perspective;

Fig. 2, an end view of same attached to the music rest of a piano.

Fig. 3, a view of the underside of the device shown in Fig. 1.

Fig. 4, a sectional view of the ratchets and push keys operated.thereby;

Fig. 5, a detail view of one of the arms which support; the book orsheet;

Fig. 6, a detail view of one of the leaf turning arms, and

Fig. 7, a detail view of one of the clips by means of which the upperedge of the leaf is attached to the turning arm.

Similar numerals of reference indicate like parts throughout the severalviews.

At intervals within the honor shell-casing A are placed one or moresprocket wheels 1 pivoted to said casing by means of crank extensions 3of the leaf turner arms 9, each of which is rigidly secured to itsrespective sprocket wheel. Leaf turner arms 2 are provided with coils 3,for holding the lower edges of the leaves; adjustable elbowjoints 4,whereby the outer portion of the arms are raised in line with thevertical edges of the leaves; cranks 5; spring clips 6 attached to thecrank-pins, for engaging the vertical edges of the leaves. Perforatedslides 8 engage sprocket wheels 1 and project through the front edge ofthe casing A a sufficient distance to afford the necessary play foroperating the mechanism. The outer ends of said slides are provided withbuttons or knobs 9. Arms 14:, pivoted at one end to casing A, extend oneither side of said casing and are provided at their outer ends withsockets 15 for holding the outer leaves or covers of the sheet or book.

The device is secured to the music rest of a piano by means of clamp 10provided with adjustable angle slide 11 and set screw 12. A modifiedform of clamp (13) is provided for pianos whereon the music rest is of adifferent construction.

To operate my device it is secured to the piano by means of the clamp,the outer leaves or covers of the music sheet or book placed in sockets15 with the bottom of the book resting on the casing; the perforateditsrespective key is pressed inward, thus turning its respective sprocketwheel and swinging the turner arm and leaf around toward the front andacross to the opposite end of the rest.

To fold the turner the arms are all swung to one side of the casing andthe forearms folded at the elbows over onto the main arms, thus makingit compact and convenientfor carrying or packing.

Having thus described my invention what I claim as new and desire tosecure by Letters Patent is,

1. A leaf turning device comprising a casing having front and rearwalls, said walls having pairs of opposed guide openings, slottedsprocket bars slidably mounted in and extending through said pairs ofopenlILQ'S, said bars being smooth on both sides, whereby they may slidefreely through said guide openings. sprocket wheels in said casinghaving teeth meshing with said bars, and a leaf-engaging crank armrigidly connected to each of said wheels.

2. In a leaf-turning device. a support, and a plurality of crank armspivotally mountstanding portion to form a coil or loop adapted to grlpthe lower edge of a leaf.

MARTIN J ELLUM.

ed on said support, each of said crank arms comprising a substantiallyhorizontal portion and an upstanding portion the upstanding portions or"the arms having leafholding clips, and the horizontal portion of eacharm being made of resilient Wire and bent at a point between the pivotand uplVitnesses BEULAH A. HULL, G. BARRINGER.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. G.

